Nurse Heather Pressdee Charged with 4 Murders, 17 Attempted Murders, and Accused of Experimenting on Patients with Lethal Insulin Doses

Former Veterinary Technician Turned Nurse May Have Practiced Lethal Dosing Methods on Animals; Allegedly Injected 19 Patients Across Five Facilities with Lethal Insulin Doses Between 2020 and 2023

Heather Pressdee, a nurse in Pennsylvania, has been charged with four counts of murder, 17 counts of attempted murder, and accusations of systematically mistreating 22 patients by administering lethal insulin doses to them in various facilities between 2020 and 2023.
Before becoming a nurse, Pressdee worked as a veterinary technician where her primary responsibilities involved administering anesthetics and euthanizing animals. Retired detective Tim Braun speculated that it was here that Pressdee began practicing lethal dosing methods before moving onto humans.
Investigations reveal that Pressdee preferred to administer excessive doses of insulin during late-night shifts when staffing was low, decreasing the chances of prompt hospitalization. Victims ranged from ages 43 to 104, with some of them not being diabetic.
Text messages retrieved from her cellphone reveal threats towards patients, colleagues, and others, and referenced 'pillow therapy' which is thought to allude to suffocation. These messages suggest a high level of premeditation in her actions.
Pressdee's alleged crimes occurred across five different facilities in Pennsylvania and drew comparisons to the infamous case of Charles Cullen, a former nurse turned serial killer who also used insulin poisoning attacks on his patients.